Sleeper sofa



FIG. 1 is a top, front, right perspective view of a sleeper sofa showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof, the right side elevational view being a mirror image thereof; and,

FIG. 7 is a top, front, right side perspective view of a second embodiment of a sleeper sofa. The broken lines in FIG. 7 illustrate a symbolic break in the length of the sleeper sofa and the appearance of any portion of the sleeper sofa between the break lines forms no part of the claimed design, that being the only difference from the embodiment shown in FIGS. 1-6.

The dashed lines are included for the purpose of illustrating environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a sleeper sofa, as shown and described. 